1. One hour basic Python scripting skills, including string manipulation and basic for loops. They used CoderPad.

2. Three one-hour, 2:1 interviews that were both technical and behavioral. The cool part was that the two people who interviewed me each time were actually people on my team.

3. One hour algorithm challenge, which was super basic.

Personally, I liked the people. However, I went through this process with an offer on the table already and told them I needed to move fast. After they dragged it out for three weeks, I got pissed off and sent seven emails in two days, insisting they make a decision and extend an offer or walk away. They did a really poor job of setting expectations and communicating.

I would work here, but it really is one of the worst interview processes you can imagine.

How would you reverse a string?

We will pass you a weight. Using the letters in the alphabet, give us back the combination which accomplishes that weight using the fewest number of letters. Letters can repeat.

A = 1 B = A*2 + 1 ...